@Bean public ResourceConfig resourceConfig() { ResourceConfig resourceConfig = new ResourceConfig(); // 用FastJson替换掉默认的Jackson resourceConfig.register(FastJsonResolver.class); resourceConfig.register(FastJsonFeature.class); return resourceConfig; } @Provider static class FastJsonResolver implements ContextResolver<FastJsonConfig> { // 用FastJson替换掉默认的Jackson public FastJsonConfig getContext(Class<?> type) { FastJsonConfig fastJsonConfig = new FastJsonConfig(); return fastJsonConfig; } }